<template>
  <!-- drawer -->
  <template v-if="modalConfig.component === 'drawer'">
    <el-drawer v-model="modalVisible" :append-to-body="true" v-bind="modalConfig.drawer" @close="handleCloseModal">
      <!-- 表单 -->
      <el-form ref="formRef" label-width="auto" v-bind="modalConfig.form" :model="formData" :rules="formRules">
        <template v-for="item in formItems" :key="item.prop">
          <el-form-item v-show="!item.hidden" :label="item.label" :prop="item.prop">
            <!-- Label -->
            <template #label v-if="item.tips">
              <span>
                {{ item.label }}
                <el-tooltip placement="bottom" effect="light" :content="item.tips" :raw-content="true">
                  <el-icon style="vertical-align: -0.15em" size="16">
                    <QuestionFilled />
                  </el-icon>
                </el-tooltip>
              </span>
            </template>
            <!-- Input 输入框 -->
            <template v-if="item.type === 'input' || item.type === undefined">
              <el-input v-model="formData[item.prop]" v-bind="item.attrs" />
            </template>
            <!-- Select 选择器 -->
            <template v-else-if="item.type === 'select'">
              <el-select v-model="formData[item.prop]" v-bind="item.attrs">
                <template v-for="option in item.options" :key="option.value">
                  <el-option v-bind="option" />
                </template>
              </el-select>
            </template>
            <!-- Radio 单选框 -->
            <template v-else-if="item.type === 'radio'">
              <el-radio-group v-model="formData[item.prop]" v-bind="item.attrs">
                <template v-for="option in item.options" :key="option.value">
                  <el-radio v-bind="option" />
                </template>
              </el-radio-group>
            </template>
            <!-- Checkbox 多选框 -->
            <template v-else-if="item.type === 'checkbox'">
              <el-checkbox-group v-model="formData[item.prop]" v-bind="item.attrs">
                <template v-for="option in item.options" :key="option.value">
                  <el-checkbox v-bind="option" />
                </template>
              </el-checkbox-group>
            </template>
            <!-- Input Number 数字输入框 -->
            <template v-else-if="item.type === 'input-number'">
              <el-input-number v-model="formData[item.prop]" v-bind="item.attrs" />
            </template>
            <!-- TreeSelect 树形选择 -->
            <template v-else-if="item.type === 'tree-select'">
              <el-tree-select v-model="formData[item.prop]" v-bind="item.attrs" />
            </template>
            <!-- DatePicker 日期选择器 -->
            <template v-else-if="item.type === 'date-picker'">
              <el-date-picker v-model="formData[item.prop]" v-bind="item.attrs" />
            </template>
            <!-- Text 文本 -->
            <template v-else-if="item.type === 'text'">
              <el-text v-bind="item.attrs">{{ formData[item.prop] }}</el-text>
            </template>
            <!-- 自定义 -->
            <template v-else-if="item.type === 'custom'">
              <slot :name="item.slotName ?? item.prop" :prop="item.prop" :formData="formData" :attrs="item.attrs">
              </slot>
            </template>
          </el-form-item>
        </template>
      </el-form>
      <!-- 弹窗底部操作按钮 -->
      <template #footer>
        <div>
          <el-button type="primary" @click="handleSubmit">确 定</el-button>
          <el-button @click="handleCloseModal">取 消</el-button>
        </div>
      </template>
    </el-drawer>
  </template>
  <!-- dialog -->
  <template v-else>
    <el-dialog
      v-model="modalVisible"
      :align-center="true"
      :append-to-body="true"
      width="70vw"
      v-bind="modalConfig.dialog"
      style="padding-right: 0"
      @close="handleCloseModal"
    >
      <!-- 滚动 -->
      <el-scrollbar max-height="60vh">
        <!-- 表单 -->
        <el-form
          ref="formRef"
          label-width="auto"
          v-bind="modalConfig.form"
          style="padding-right: var(--el-dialog-padding-primary)"
          :model="formData"
          :rules="formRules"
        >
          <template v-for="item in formItems" :key="item.prop">
            <el-form-item v-show="!item.hidden" :label="item.label" :prop="item.prop">
              <!-- Label -->
              <template #label v-if="item.tips">
                <span>
                  {{ item.label }}
                  <el-tooltip placement="bottom" effect="light" :content="item.tips" :raw-content="true">
                    <el-icon style="vertical-align: -0.15em" size="16">
                      <QuestionFilled />
                    </el-icon>
                  </el-tooltip>
                </span>
              </template>
              <!-- Input 输入框 -->
              <template v-if="item.type === 'input' || item.type === undefined">
                <el-input v-model="formData[item.prop]" v-bind="item.attrs" />
              </template>
              <!-- Select 选择器 -->
              <template v-else-if="item.type === 'select'">
                <el-select v-model="formData[item.prop]" v-bind="item.attrs">
                  <template v-for="option in item.options" :key="option.value">
                    <el-option v-bind="option" />
                  </template>
                </el-select>
              </template>
              <!-- Radio 单选框 -->
              <template v-else-if="item.type === 'radio'">
                <el-radio-group v-model="formData[item.prop]" v-bind="item.attrs">
                  <template v-for="option in item.options" :key="option.value">
                    <el-radio v-bind="option" />
                  </template>
                </el-radio-group>
              </template>
              <!-- Checkbox 多选框 -->
              <template v-else-if="item.type === 'checkbox'">
                <el-checkbox-group v-model="formData[item.prop]" v-bind="item.attrs">
                  <template v-for="option in item.options" :key="option.value">
                    <el-checkbox v-bind="option" />
                  </template>
                </el-checkbox-group>
              </template>
              <!-- Input Number 数字输入框 -->
              <template v-else-if="item.type === 'input-number'">
                <el-input-number v-model="formData[item.prop]" v-bind="item.attrs" />
              </template>
              <!-- TreeSelect 树形选择 -->
              <template v-else-if="item.type === 'tree-select'">
                <el-tree-select v-model="formData[item.prop]" v-bind="item.attrs" />
              </template>
              <!-- DatePicker 日期选择器 -->
              <template v-else-if="item.type === 'date-picker'">
                <el-date-picker v-model="formData[item.prop]" v-bind="item.attrs" />
              </template>
              <!-- Text 文本 -->
              <template v-else-if="item.type === 'text'">
                <el-text v-bind="item.attrs">{{ formData[item.prop] }}</el-text>
              </template>
              <!-- 自定义 -->
              <template v-else-if="item.type === 'custom'">
                <slot :name="item.slotName ?? item.prop" :prop="item.prop" :formData="formData" :attrs="item.attrs">
                </slot>
              </template>
            </el-form-item>
          </template>
        </el-form>
      </el-scrollbar>
      <!-- 弹窗底部操作按钮 -->
      <template #footer>
        <div style="padding-right: var(--el-dialog-padding-primary)">
          <el-button type="primary" @click="handleSubmit">确 定</el-button>
          <el-button @click="handleCloseModal">取 消</el-button>
        </div>
      </template>
    </el-dialog>
  </template>
</template>

<script setup lang="ts">
import { useThrottleFn } from '@vueuse/core'
import type { FormInstance, FormRules } from 'element-plus'
import { nextTick, reactive, ref, watch, watchEffect } from 'vue'
import type { IModalConfig, IObject } from './types'

// 定义接收的属性
const props = defineProps<{
  modalConfig: IModalConfig
}>()
// 自定义事件
const emit = defineEmits<{
  submitClick: []
}>()

const pk = props.modalConfig.pk ?? 'id'
const modalVisible = ref(false)
const formRef = ref<FormInstance>()
const formItems = reactive(props.modalConfig.formItems)
const formData = reactive<IObject>({})
const formRules: FormRules = {}
const prepareFuncs = []
for (const item of formItems) {
  item.initFn && item.initFn(item)
  formData[item.prop] = item.initialValue ?? ''
  formRules[item.prop] = item.rules ?? []

  if (item.watch !== undefined) {
    prepareFuncs.push(() => {
      watch(
        () => formData[item.prop],
        (newValue, oldValue) => {
          item.watch && item.watch(newValue, oldValue, formData, formItems)
        }
      )
    })
  }

  if (item.computed !== undefined) {
    prepareFuncs.push(() => {
      watchEffect(() => {
        item.computed && (formData[item.prop] = item.computed(formData))
      })
    })
  }

  if (item.watchEffect !== undefined) {
    prepareFuncs.push(() => {
      watchEffect(() => {
        item.watchEffect && item.watchEffect(formData)
      })
    })
  }
}
prepareFuncs.forEach(func => func())

// 获取表单数据
function getFormData(key?: string) {
  return key === undefined ? formData : (formData[key] ?? undefined)
}

// 设置表单值
function setFormData(data: IObject) {
  for (const key in formData) {
    if (Object.hasOwn(formData, key) && key in data) {
      formData[key] = data[key]
    }
  }
  if (Object.hasOwn(data, pk)) {
    formData[pk] = data[pk]
  }
}

// 设置表单项值
function setFormItemData(key: string, value: any) {
  formData[key] = value
}

// 显示modal
function setModalVisible(data: IObject = {}) {
  modalVisible.value = true
  // nextTick解决赋值后重置表单无效问题
  nextTick(() => {
    Object.values(data).length > 0 && setFormData(data)
  })
}

// 表单提交
const handleSubmit = useThrottleFn(() => {
  formRef.value?.validate((valid: boolean) => {
    if (valid) {
      if (typeof props.modalConfig.beforeSubmit === 'function') {
        props.modalConfig.beforeSubmit(formData)
      }
      props.modalConfig.formAction(formData).then(() => {
        let msg = '操作成功'
        if (props.modalConfig.component === 'drawer') {
          if (props.modalConfig.drawer?.title) {
            msg = `${props.modalConfig.drawer?.title}成功`
          }
        } else {
          if (props.modalConfig.dialog?.title) {
            msg = `${props.modalConfig.dialog?.title}成功`
          }
        }
        ElMessage.success(msg)
        emit('submitClick')
        handleCloseModal()
      })
    }
  })
}, 3000)

// 关闭弹窗
function handleCloseModal() {
  modalVisible.value = false
  formRef.value?.resetFields()
  nextTick(() => {
    formRef.value?.clearValidate()
  })
}

// 暴露的属性和方法
defineExpose({ setModalVisible, getFormData, setFormData, setFormItemData })
</script>

<style lang="scss" scoped></style>
